<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">优学伴</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2025 youxueban All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'
import { getRoleByUserName, getUserProfile, getUserNameByID } from "@/api/system/user";
import { getTeacherPhone } from "@/api/profile/profile";
import { getParentPhone } from "@/api/parentProfile/parentProfile";
import { getParentProfileByUserId } from "@/api/parentProfile/parentProfile";
import { addParentProfile } from "@/api/parentProfile/parentProfile";
import { mapGetters } from 'vuex'


export default {
  name: "Login",
  data() {
    return {
      roleName: '',
      userName: '',
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: true,
      redirect: undefined,
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    //获取角色名
    getRoleName() {
      return getRoleByUserName(this.loginForm.username).then((res) => {
        if (res && res.data) {
          this.roleName = res.data.roleName;
          localStorage.setItem("roleName", res.data.roleName);
        }
      }).catch(error => {
        console.error('获取角色失败:', error);
        return Promise.reject(error);
      });
    },
    //获取用户id
    getUserId() {
      return getUserProfile().then((res) => {
        if (res && res.data) {
          localStorage.setItem("userId", res.data.userId);
        }
      }).catch(error => {
        console.error('获取用户ID失败:', error);
        return Promise.reject(error);
      });
    },
    // 通过用户id获取用户名
    getUserNameByID() {
      return getUserNameByID(localStorage.getItem("userId")).then((response) => {
        if (response) {
          localStorage.setItem("userName", response);
          this.userName = response;
        }
      }).catch(error => {
        console.error('获取用户名失败:', error);
        return Promise.reject(error);
      });
    },


    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },

    
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            // 登录成功后立即获取所有必要数据
            this.getRoleName()
              .then(() => this.getUserId())
              .then(() => this.getUserNameByID())
              .then(() => {
                // 根据角色获取电话号码
                if (localStorage.getItem("roleName") === "教员") {
                  return this.getTeacherPhone();
                } else if (localStorage.getItem("roleName") === "家长") {
                  return this.getParentPhone().then(() => {
                    // 检查是否已有家长信息，如果没有则创建
                    return this.checkAndCreateParentProfile();
                  });
                }
              })
              .then(() => {
                // 跳转到首页
                this.$router.push({ path: "/" }).catch(()=>{});
              })
              .catch(error => {
                console.error('获取用户信息失败:', error);
                this.loading = false;
              });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    },

    // 获取教员电话
    getTeacherPhone() {
      return getTeacherPhone(localStorage.getItem("userId")).then((response) => {
        if (response && response.msg) {
          localStorage.setItem("teacherPhoneNumber", response.msg);
        }
      }).catch(error => {
        console.error('获取教员电话失败:', error);
        return Promise.reject(error);
      });
    },

    // 获取家长电话
    getParentPhone() {
      return getParentPhone(localStorage.getItem("userId")).then((response) => {
        if (response && response.msg) {
          localStorage.setItem("parentPhoneNumber", response.msg);
        }
      }).catch(error => {
        console.error('获取家长电话失败:', error);
        return Promise.reject(error);
      });
    },

    // 检查并创建家长信息
    checkAndCreateParentProfile() {
      return new Promise((resolve, reject) => {
        const userId = localStorage.getItem("userId");
        if (!userId) {
          reject(new Error("用户ID未获取到"));
          return;
        }

        // 1. 精确查询家长信息
        getParentProfileByUserId(userId)
          .then(response => {
            // 如果返回空对象，说明家长信息不存在
            if (!response || Object.keys(response).length === 0) {
              return this.createParentProfile(userId);
            } else {
              console.log("家长信息已存在，跳过创建");
              resolve();
            }
          })
          .then(() => {
            resolve();
          })
          .catch(error => {
            console.error("查询家长信息失败:", error);
            reject(error);
          });
      });
    },
    
    // 封装创建家长信息
    createParentProfile(userId) {
      return new Promise((resolve, reject) => {
        const parentData = {
          userName: localStorage.getItem("userName"),
          parentName: localStorage.getItem("userName"),
          roleName: localStorage.getItem("roleName"),
          userId: userId
        };
        addParentProfile(parentData)
          .then(() => {
            console.log("家长信息创建成功");
            resolve();
          })
          .catch(error => {
            console.error("创建家长信息失败:", error);
            reject(error);
          });
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/bgi.png");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
